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  4. Determinant factors of intraocular pressure responses to a maximal isometric handgrip test: Hand dominance, handgrip strength and sex
 
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Determinant factors of intraocular pressure responses to a maximal isometric handgrip test: Hand dominance, handgrip strength and sex
Pérez Castilla, Alejandro
García-Ramos, Amador
Facultad de Educación 
Redondo, Beatríz
Fernández Revelles, Andrés
Jiménez, Raimundo
Vera, Jesús
10.1080/02713683.2020.1780265
Taylor & Francis
2021
Purpose: To assess the mediating role of strength levels, hand dominance and participants´ sex on the intraocular pressure (IOP) behaviour during the execution of a maximal isometric handgrip test. Methods: One hundred and seventy-six sport science students (102 men and 74 women) performed a maximal isometric handgrip test with the dominant and non-dominant hands. A rebound tonometer was used to measure IOP before effort, during effort, and immediately after performing the handgrip test. Men and women were divided based on their handgrip strength in low- and high-strength groups using a median split analysis. Results: There was an acute IOP rise during effort, returning to baseline levels immediately after exercise cessation (P < .001, ηp2 = 0.79). A greater increase in IOP during the execution of the handgrip test was observed for the dominant-hand compared to the non-dominant hand (P = .004, d = 0.30) and for men compared to women (P = .001, d = 0.90). The main effect of strength level did not reach statistical significance (P = .266). Conclusions: The IOP rise associated with a maximal isometric handgrip effort is affected by the participants´ sex (men > women) and hand dominance (dominant hand > non-dominant hand), but not on strength levels. These findings need to be corroborated in glaucoma patients.
Ocular physiology
Handgrip strength
Resistance training
Ocular health
Glaucoma management
Medicina clínica
Historial de mejoras
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